Apparatus for manufacturing tires or interliners



v W. F. RAY.

APPARATUS FOR MANUFACTURlNG TIRES 0R INTERLINE RS.

APPLICATION FILED NIH/.28, 1919- Reissued June 8, 1920.

fivenijvr' figm a 1 16% w. F. RAY.

APPARATUS FOR MANUFACTURING TIRES 0R lNTERLlNERS. APPLICATION FILED NOV. 28, 19:9.

2 SHEETSSHEET 2.

Reissued June 8, 1920.

I "All" Jive/772071 UNITED srArgs rArsNT rams.

WILLIAM F. BAY, OF CHICAGO, ILLINOIS.

APPARATUS ron MANUFACTURING Trans on INTERLINERS.

Specification of Reissued Letters Patent. Rgig d J 8 1920 original m; 1,292,052, dated January 21, 1919, Serial No. 257,453, filed October 9, 1918. Application for reissue filed November 28,

To all whom it may concern:

Be it known that 1, WILLIAM F. RAY, a a citizen of the United States, residing at Chicago, in the county 01": Cook and State of Illinois,have invented a new and useful Improvement in Apparatus for Manufacturing Tires or Interliners, of which the following is a specification.

This invention relates particularly to apparatus for use in the manufacture of a puncture-proof inner casing or interliner, or puncturapr'oof tire; and the invention is well adapted to use in the manufacture of a tire, or interliner, of the character described in my Patent No. 1,251,576, granted January 1st. 1918.

The primary object is to provide a simple and cheap device or apparatus which. is adapted for use in the economical manufacture of a tire, or interliner, of the character mentioned.

The invention is illustrated, in the pre ferrcd embodiment in the accompanying drawings, in which-- Figure 1 represents an elevational view of the improved apparatus, the view showing certain parts brokenly; Fig. 2, a broken plan view ofa tire, or interliner, for use in the manufacture of which the improved apparatus is particularly useful; Fig. 3, a sectional View of the annular mandrel of the device and the templet which is employed for spacing the inner series of steel strips which enter into the construction of the intcrliner,-or tire, the section being taken as indicated at line 3 of Fig. 4; Fi 4:, a broken plan view illustrating the carcass in process of construction; Fig. 5, a section similar to Fig. 3, but showing the templet employed for spacing the steel strips of the outer series; Fig. 6, a broken plan view similar to Fig. 4, but illustrating the spacing of the steel strips of the outer series; Fig. 7 a broken perspective view illustrating the manner in which the templet in use is mounted; and Fig. 8, sectional. view taken as indicated at line 8 of Fig. 1, and showing one of the templet-supports, carried by the core, it being remarked that Fig. 1 shows two of thesetemplet-supports, each one of which is adapted to support either. one of the two templets which are used during the course of the manufac' ture of the tire or interliner structure.

In the form of the device illustrated, A represents a standard equipped with an arm 1919. Serial N0. 341,313.

A upon which is mounted arotatable spider A 13, an annular core or mandrel mounted 4 on the spider A C, a pair of templet-supports carried by the mandrel; and C and Q a pair of annular templets, one of which 18 used in placing the steel strips of the inner serles and the other of which is used in placing the steel trips of the outer series.

The frame, or mounting, A, may be of any suitable construction. The form illustrated is well adapted to support the mandrel and permit it to be turned as may be necessary in ihe operation of building up the tire strucure.

The mandrel B may be constructed in any desired manner. In the illustration given, the mandrel comprises a hollow metal annulus.

The templet-supports C, of which there are two, are detachably mounted in the inner perlphery of the annular mandrel in the manner illustrated in Fig. 8. Each support- C comprises a post 1 equipped with crossarms 1 and 1*, each of which is adapted to serve as one of the supports for an annular templet. The post 1 is of square cross-section and fits snugly in a radial socket 2 which is firmly secured in the mandrel, the socket being open at its inner end to permit insertion or withdrawal of the post 1. The

post 1 is held securely in place by frictional contact with the socket. The member G is provided with a knob, or handle, 1, to facilitate the insertion or withdrawal of the post.

The templet 0 comprises a metal annulus of concavo-convexcross-section, approximately a quarter of acircle as shown. in 7. This memberis provided with a pair of diametrically opposite, guide arms 3, each provided with a guide slot 5 adapted to engage the arm 1 of the corresponding templet-support C. The curved templet C is adapted to' embrace one side ofthe mandrel B and has one edge portion which encircles the outer circumference of the mandrel B. This edge portion is provided wit-h a circumferential series of transverse recesses, or slots 4:, adapted to receive the inner series of steel strips which form a portion of the armor of the interliner, or tire, structure. The recesses 4c are equi-distant from each other, and thus the templet is provided with teeth or projections 1 At points corresponding with the guide-arms 3, two of the teeth are provided with slots 4 adapted to receive the narrowed portions of the webs of .a pair of clamps 5 which are employed to clamp the templet to theform. The clamp 5 has an arm 5 adapted to engage one side of the form and warm 5' with a set-screw 5 adapted to engage the other side of the templet. The web'po'rtion of the member 5 is v 5 adapted"to engage the end of the slotted tooth 46, thus providingstops which insure the accurate positioning of the templet with relation to the form. v K

In F ig.7 the carcass of the interliner is shown as composed of a number of layers of fabric 6; These layers are impregnated with rubber cement in the usual manner and, inpr'actice,"the"outer' layer "of fabric is suflicientlysticky to engage and hold the curved steel'strips' when they are placed in the spaces't 'and'pressed against the fabric; Fig-'3 represents asecti onaI view corresponding with Fig. 7, and shows one of the "steel strips 6* in position. Fig; at shows a series of the steel strips 6? in'posi tion. It will be understood that the templet C is mountedf'on the "mandrel" in the manner illustrated'inFig. land'i's employed dur ing the operationofplacing the inner series of steel strips 6 The templet C is then removed, and additional layers of fabric are are than the templet C applied, so that the-series'of strips 6?" are covered, these additional layers of fabric being indicated by the numeral? in Fig. 5. The templetfC which has a slightly larger is then applied, and ano'uter series'ofcurved steel strips 8 are placedf'in'position.

The templet C is provided with a series of transverse slots, or recesses, 9,"adaptjed to permit the steel strips 8 to' be placedin position as 'will'be understood from Figs. 5 and 61 Thus, the templet C has a serie's' of spacedteeth 9 and'at diametrically opposite pointstwo of these teeth are provided with slots 9 adapted to receivethe reduced portions ofthe webs of the clamps 5*,which may be reversed when used in connection with the templet (1?; The'spaces 9'of1the templet C? 'arestaggered, with relation to the spaces 4 of the templet C, as will be understood from Figs. 4 and 6 the purpose being'to enable the steelfstrips 8'to be so placed as to overlap the steel strips 6] of the inner series." The templet Cffis provided with 'apai'r ofdiametrically opposite arms 10 which'are slotted in the sam'e'manner as are the arms 3 'o'fthe'te'mplet C so as'to engage the socket arms' nor, the templet-supports Q. These guides 10 are so positioned o'n the" templet C asto cause the slots '9 ofjthe templet to be staggered with relation to'the'po'sition of theinner st'ee'l' strips 6?. This is important" forthe reason'that the inner series of/strips are which is equipped Y provided with shoulders ables an interliner or tire structure of the character mentioned to be constructed rapidly and in an economical manner. It is preferred to mount the templet-supports C directly upon the inner peripheral portion of the mandrel B; and as it is necessary, in common practice, to employ many mandrels in the manufacture of each-size of interliner or tire, it is convenient to form thetemplet-supports separately and then insert them in sockets with which the mandrel is provided, in the manner illustrated in Fig. 8. I

While the members C have been described as templet-supports and in one sense are supports, it should be noted that their chief function is to serve as guides or positioning members for the templets. Thus,'the arms 1 of the members C are freely entered in the slots 3 ofrthe arms 3 of the templets and position the templets, but do not engage the bottoms of said slots. Each templet, however, has a cross-sectional curvature which causes it to overlie and embrace the treadportion of the form in a substantial manner, so that the form will substantially support the templet; and,- if desired, the templet may be'bound to the form, as by meanso'f the clamps 5, as illustrated.

. The foregoing detailed description has been given for clearness of understanding only, and not unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible, in view of the'prior art.

What I regardas new and desire'to secure by Letters Patent is:

1. In means of the character set forth, the'combination of'an annular mandrel, a templet-positioning device, and an annular templet engaging said,.posi tioning device and eo-acting with said mandrel, saidtemplet being provided circumferentially with a series of recesses j 2. In means of the character set forth, the combination-of "an annular mandrel, a plurality'of supports, and a pair of templets adaptedto be positionedby saidsupports, said templets being provided circumferentially with series of recesses, the recesses of one templet being staggered with relation'to the recesses of the other templet,

3. In means of the character set forth, the combination of an annular mandrel, a plurality of supports, a pair of annular templets adapted to co-act with said mandrel, said templets having positioning arms so disposed as to engage said supports and having series of annular recesses, the series of recesses of one templet being staggered with relation to the series of recesses of the other templet.

4;. In means of the character set forth, the combination of an. annular mandrel, a plurality of posts extending inwardly from said mandrel and equipped with cross-arms, and a pair of templets adapted to co-act with said mandrel, said templets having series of circumferential recesses which are staggered with relation to each other and having arms adapted to engage the arms of said posts.

5. In means of the character set forth, the combination of an annular mandrel having a plurality of radial sockets, a plurality of posts removably mounted in said sockets, each post having a pair of laterally projecting arms, and a pair of templets provided with circumferential series of recesses which are staggered with relation to each other and provided with arms having guide slots adapted to engage the arms of said posts.

6. In means of the character set forth, the combination of an annular mandrel, a plurality of supports, an annular templet positioned by said supports and co-acting with said mandrel, said templet being provided circumferentially with a series of recesses, and clamping devices adapted to secure said templet to said mandrel.

7. In means of the character set forth,

the combination of an annular mandrel a plurality of supports, an annular templet positioned by said supports and co-acting with said mandrel, said templet being rovided circumferentially with a series ofh'ecesses, and clamping devices adapted to secure said templet to said mandrel, said clamping devices having shoulders adapted to engage the templet and properly position the same with relation to the mandrel.

8. In means of the character set forth, the combination with an annular mandrel, of an annular templet having a concave surface embracing one side and the outer circumferential portion of said mandrel, said templet having laterally open recesses in the edge-portion which encircles the outer circumferential portion of said mandrel.

9. In means of the character set forth, the combination with an annular mandrel, of a pair of annular templets, each having a concave surface adapted to embrace one side and the outer circumferential portion of said mandrel and having laterally open recesses in the edge portion which encircles the outer circumferential portion of said mandrel, the arc of curvature of one of said templets being larger than that of the other templet.

10. In means of the character set forth, the combination with an annular mandrel, of a removable annular templet conforming to said mandrel and provided with an annular series of recess adapted to receive armor strips and position the same upon a carcass on said mandrel.

WILLIAM F. RAY. 

